package instanceoftest;

/**
 * Created by 罗选通 on 2017/11/13.
 */
public class A extends RuntimeException{

  public A() {
    super();
  }

  /** Constructs a new runtime exception with the specified detail message.
   * The cause is not initialized, and may subsequently be initialized by a
   * call to {@link #initCause}.
   *
   * @param   message   the detail message. The detail message is saved for
   *          later retrieval by the {@link #getMessage()} method.
   */
  public A (String message) {
    super(message);
  }

  /**
   * Constructs a new runtime exception with the specified detail message and
   * cause.  <p>Note that the detail message associated with
   * {@code cause} is <i>not</i> automatically incorporated in
   * this runtime exception's detail message.
   *
   * @param  message the detail message (which is saved for later retrieval
   *         by the {@link #getMessage()} method).
   * @param  cause the cause (which is saved for later retrieval by the
   *         {@link #getCause()} method).  (A <tt>null</tt> value is
   *         permitted, and indicates that the cause is nonexistent or
   *         unknown.)
   * @since  1.4
   */
  public A (String message, Throwable cause) {
    super(message, cause);
  }

  /** Constructs a new runtime exception with the specified cause and a
   * detail message of <tt>(cause==null ? null : cause.toString())</tt>
   * (which typically contains the class and detail message of
   * <tt>cause</tt>).  This constructor is useful for runtime exceptions
   * that are little more than wrappers for other throwables.
   *
   * @param  cause the cause (which is saved for later retrieval by the
   *         {@link #getCause()} method).  (A <tt>null</tt> value is
   *         permitted, and indicates that the cause is nonexistent or
   *         unknown.)
   * @since  1.4
   */
  public A (Throwable cause) {
    super(cause);
  }

  /**
   * Constructs a new runtime exception with the specified detail
   * message, cause, suppression enabled or disabled, and writable
   * stack trace enabled or disabled.
   *
   * @param  message the detail message.
   * @param cause the cause.  (A {@code null} value is permitted,
   * and indicates that the cause is nonexistent or unknown.)
   * @param enableSuppression whether or not suppression is enabled
   *                          or disabled
   * @param writableStackTrace whether or not the stack trace should
   *                           be writable
   *
   * @since 1.7
   */
  protected A (String message, Throwable cause,
                             boolean enableSuppression,
                             boolean writableStackTrace) {
    super(message, cause, enableSuppression, writableStackTrace);
  }
}
